Improvement in time-locks



T. W. SPENCER.

' TIME-LOCK.

Z Sheets-Sheet1 No.179,076. 'Patented June 20,1876.

Att o rneyr N.FETERS PHOTO-L!THDGRAPHER|, WASHINGTON. D C,

T; w. SPENCER. v TIME-LOCK. N o.179,076. Patented June 20,1876.

' WIT E S S LNVEJVTOR N.PETERS, PNOTO-LITHOGRAFHER. WASHXNGTUN. D O,

2 ShegtsSheet 2.

To all whom it may concern PATENT j l I J I [a THOMAS- W. SPENCER, .OF OIRGLEVILLE, OHIO.

-IMPROVEMENT IN TIME LOCKS.

Specification forming part of Letters Patent No. [79;076, dated J one 20, 1876; application filed a February 15,1876. V l 1 Be it known that I, THOMAS W. SPENCER, of Oircleville, in the county of 'Pickaway and State of Ohio, have invented certain new and useful Improvements in Time-Lock; and I do hereby declare the following to be a full, clear, and exact description of the invention,

vsuch as will enable others skilled in the art to which it pertains to makeand use it, refer ence being bad to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in time-locks for securing safes, strong rooms,

A is the lock-bolt, pivoted at a. The object of this lock-bolt is either to act directly to lock the door, as it may do, or, more properly, to act as a stop to prevent the retraction of the bolt-work of the door, until, by the action of the time-piece, this bolt [A is released.

The bolt A is so constructed that it is heavier at its locking end than at its rear end, and when, therefore, it is relieved from pressure at its rear end the bolt will drop down into position.

- with a stop, B which presses upon the rear end of the bolt A. B is a rigid arm, projectin g from this pivoted lever B, and is connected by a link, B to an arm, B, which is given a downward pressure due to the tension of a spring, B 0 is another arm of the lever B, which projects down, so as to act in conjunction with a trip, D. D is a trip, consisting simply of a friction-roller in the end of an arm, D this arm beingpivotedtotherock-shaft D. D is an arm projecting upward from the rockshaft D D is a link, connecting'arm D to the upright bar D. This bar is pivoted at its lower end to the frame, and is acted upon by the spring D D is a bar, one end of which slides in a bracket, D

The bar D has a pin, D", projecting from i it, which acts upon the'in'cline on the under side of the detent-bar D and when pushed to the left the pin D? will catch under the shoulder D on the barD and will there remain until released by the time mechanism, as will be hereinafter described.

The bolt is thrown down into a position ready for closing the door of a safe, as follows: The bolt A being in the position shown in Fig. 3, the operator presses down upon the lever. B. This releases the pressure of the stop B upon the bolt A. The bolt A then drops to its position; atcthe same time the arm 0 passes beyond the trip D. The upright bar D is then pressed to the left. It carries with it the link D which draws the arni D until the the trip-roller D in front of the-arm G, and thereby prevents the stop B from pressing b'olt A will therefore remain in the position shown in Fig. 1.

to release the triproller ,D, and thereby re-' locked by the spring 13*", the followingdevice is employed: The pin' D raises the bar D and passes behind the shoulder D 9. E is the time-wheel, operated by the time mechanism, and will bring at the proper time the project- D. The spring D will then force the upright bar D to'theright, causing the triproller D to be released from the foot of the arm 0. Then the-spring B will operate to springthe bolt A up out of the Way. The

snugly upon the pin D".

F is a shaft, having an arm, F against which the spring F operates. This shaft also carries the arm F and the stop F The stop F is provided with a small shoul-' der, which holds the bar D firmly in its place until it is released by the clock-work. The effect of the clock-work is to lift the bar D but it is not lifted until after a stud or bridge on the time-sh aft presses upon the arm F and thereby releases the stop F The clock is constructed so that the bolt A may rise on an incline and drop into or latch rock-shaft D raises the arm D and throws down upon the rear end of the bolt A. The

Now, in order that the time-piece may act lease the arm O, causing the boltto be un-- ing pin E beneath the bar D lifting it suf-- ficiently to free the pin D from the shoulder spring E serves to hold the bar D down in a recess, when the door is finallyclosed after setting the time mechanism but after,

it hasrisen on the incline onoe -that is, in closing-it cannot be raised again until re leased by the time mechanism.

The mechanism for effecting this operation is as follows: G is an upright bar, leading from and carried by bolt A. G is ashoulder projecting from it. G is a pin, also projectingt'rom it, and which carries a slidin g bracket, H, which bracket is raised by the pin G but "is permitted to drop of its own weight. 'Iis a lever swingingfrom the pointl This lever Ihas attached to it a spring J. Arod, K, passes from the spring to the right,-andis finally attached to the upright arm K, which rises from the rock-shaft D -Now,.when the bolt A is down, and it is desired to lock the door of, the safe, the latch g of the bracket H is placed'below the notch l of the lever I, so as the rock-shaft; because when the time mechanism is set the rock-shaft has been turned over to the left by forcing the pin D under the shoulder D of the bar 1). Now, as the door is closed, and the outer end of the bolt is raised, the pin G of the vertical bar G raises the sliding bracket until its latch 9 comes against the upper edge of the notch 1 When the bolt A reaches the recess beyond the incline in the door-jam the bolt drops of its own weight-into the recess, and the projection G on the upright bar G drops below shoulder 1'. on the lever I, which shoulder prevents it from being again raised lintil the time mechanism has lifted the bar D releasing it, and permits the spring D to throw the upright bar D to the right, thus relieving the pressure'on the spring J by the rod K. This spring then acts in the opposite direction to lift the shoulder l away from over the projection G on the upright bar G, and the bolti s immediately thrown up 'or unlocked by the action of the spring B A shaft, L, also attached to thear'm K, compresses a spring, L, which assists the spring J andjthe spring B .in throwing up the bolt A, or in unlocking it.

M is a spring which presses against a sliding bracket, N, in which bracket is journaled the wheel N working against the time-wheel'E.

N is a' projecting handle, which, by pressing to the left, carries with it the bracket N, and disconnects this small wheel N from the timewheel E, permitting the operator to set the time-wheel to any particular time for opening.

P is an alarm mechanism, governed by the trip P, which engages in a recess, P in the spring Lhaml the alarm cannot be sounded until the bolt is released. As before described, this releases the shaft L from its pressure against the spring L ,iand,-as the fspringres. .cedes, it releases the triprP F,andconsequently; on

releases the alarm;

n This lock, it. is a eals, is equally: adaptedto be placed iiporrajalilli, asuporra 1f placed on a jamb, the inclineiis ofi door. course, upon thedoor, andvice versa.

Qis a sliding frame, which assists in set-p ting the time mechanism, aslfollowszfTheopi .erator first presses down upon the arm B. unitil the arm 0 is carried backof the tripD.) Then he pressesthe sliding frame Q to the i left, which carries with iiJXtlJG upright bar D until the pin I) comes under the shoulder i The mechanism is: then set, and, after the door is closed, it can only. be openedafter v the bolt is released bythe time-piece. I

It will be understood thatthe actuating movement is imparted tothe time-wheel E by any suitable or usual means. One of the wheels of aclock-work revolves in any given time-generally every twenty-fourhours -and thus operates and revolvesthe time-wheel correspondingly. But I" do not iu anywise limit myself to a special connection with the clock mechanism, and hence have avoided any description of same; but anykind of clock-work and connecting medium may be 1 employed which revolves the shaft ofthe timewheel once in every twenty-four hours. I

What I claim is- 1. The time-lockherein described,consisting essentially of the bolt A, thespringB the arm (3, the tripD, in. connection with the timenvheel, the bar D, the stop F and the locking-leverI, with the intermediate mechanism, substantially as described, forop crating the same, substantially as set forth.

2. In combination with the bolt of a"time lock, the upright bar D detent-bar D stop+ piece F and intermediate mechanism, where;

by the time movement releaseslsaid bolt, sub:

stantially asand for the purpose described. i

3. The combination, with the bolt A, of the i i v upright bar G, with its. projections G G to-q gether with the sliding bracketH and lever I, provided with the notch 1 and shoulder 1 substantially as described. a

4. The combination, with. the bracket H, the bar G, and lever I, of the springJ, and rodK, substantially as and forthepurposedescribed.

5. The spring-pressed sliding bracket, for

throwing in relative engagement the wheel N and time-wheel E vwhilethe clockmovement is being set for any appointed hour, substantially as and for the purpose described.

In testimony whereofl havesigned my name tothis specification in the presence of two subscribing witnesses. a

' THOS. SPENCER.

Witnesses:

B. H. BosT IoK, JEREMIAH HALL. 

